Of the 6 patients who showed evidence of intracranial vertebral artery lesions, 5 had unilateral occlusion and 1 had bilateral lesions (a combination of occlusion and stenosis). Of the 3 patients who ...

medically treated patients with either symptomatic extracranial carotid occlusion or intracranial stenosis or occlusion of the carotid artery or middle cerebral arteries. All patients had baseline ...